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Wind Turbines in a Development Context. Materials available locally all over the world Transferable Education Simple processes Sustainable – “triple bottom line”. Appropriate Technology.
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Materials available locally all over the worldTransferable EducationSimple processesSustainable – “triple bottom line” Appropriate Technology
Renewable ResourceReplaces kerosene or petrol burning generatorsOff grid – no need for grid infrastructureThe design: Uses reclaimed or recycled materialsLower embodied energyworst bits – magnets, resinClimate Change – will affect poorer areas of the world firstPeak Oil – reliance on multinationals for oil, when it goes it’ll get more expensive and more difficult to get – poor will suffer again Environmental Sustainability
Economic Sustainability Target group - low income low assets Micro Finance schemes – the community purchases the technology, sells back the electricity Budget $1/week/household One turbine can serve many houses – decreasing payback time If entirely financed by NGO, not looked after
Social Sustainability Community Educated Community Ownership Bring the community together Cooperative Model Social Enterprise Independent from external social/political situation
Basics of an Off Grid Energy System for Rural Applications Generator – Hugh Piggotts design Storage – Batteries – types of: (Car, Deep Cycle) protecting, connecting, safety Use + Distribution – Lighting Computers Small industry e.g. sewing Radio and TV
Case Study - Pakistan EWB Bursary to run course in Renewable Energy Technology, (1.2m Hugh Piggot Turbine and Solar Water Heaters) University of Abbottabad, Pakistan August 2007 – Main lessons: Material purchasing, Technology and education transfer Language/cultural differences Application Potential e-mail me if you want photos – aran.eales@btinternet.com
Case Study - Philipines NGO – SIBAT Funding – World Bank Develop small wind turbines as a CBRES technology. Installed a wind/solar powered potable water system in Buli, a remote island community approximately 160 km south west of Manila. Currently have to travel long distances to fetch water “Prove” technology for further installations
Technical Problems Broken bridge rectifier – No load – Over spinning blades – Stator failure Blade failure
General Problems Remoteness – lack of access to parts Social Problems Lack of faith in NGO when there’s a breakage Politics – who owns it Economic Problems NGO funding is limited Role of EWB Sharing Knowledge and Technology, Training local engineers, Producing manuals
Plan for tomorrow: 3 groups: Turbine Construction Carving Blades, Magnet Disk for Casting Classroom Mounting and Tower Manufacturing a tower Welding practice Testing Obtaining power curve Use of annemometer
Safety • Hazards: Blades – Fingers, Eyes, Splinters Alternator – Nails, Jigsaw, Magnets, Soldering Mounting – Welding, Grinding, Sparks Erecting – Fall damage! Trip danger • Precautions: Wear goggles, gloves, hardhats Be aware of what’s going on around you Ask if you don’t know Don’t Rush!